ILSpy/ICSharpCode.Decompiler.Tests/TestCases/Pretty/Switch.cs

// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
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// to whom the Software is furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// DEALINGS IN THE SOFTWARE.

using System;
using System.Collections.Generic;
using System.Reflection;

namespace ICSharpCode.Decompiler.Tests.TestCases.Pretty
{
	public static class Switch
	{
		public class SetProperty
		{
			public readonly PropertyInfo Property;

			public int Set {
				get;
				set;
			}

			public SetProperty(PropertyInfo property)
			{
				this.Property = property;
			}
		}

		public static string SparseIntegerSwitch(int i)
		{
			Console.WriteLine("SparseIntegerSwitch: " + i);
			switch (i) {
				case -10000000: {
					return "-10 mln";
				}
				case -100: {
					return "-hundred";
				}
				case -1: {
					return "-1";
				}
				case 0: {
					return "0";
				}
				case 1: {
					return "1";
				}
				case 2: {
					return "2";
				}
				case 4: {
					return "4";
				}
				case 100: {
					return "hundred";
				}
				case 10000: {
					return "ten thousand";
				}
				case 10001: {
					return "ten thousand and one";
				}
				case 2147483647: {
					return "int.MaxValue";
				}
				default: {
					return "something else";
				}
			}
		}

		public static string SwitchOverNullableInt(int? i)
		{
			switch (i) {
				case null: {
					return "null";
				}
				case 0: {
					return "zero";
				}
				case 5: {
					return "five";
				}
				case 10: {
					return "ten";
				}
				default: {
					return "large";
				}
			}
		}

		public static string SwitchOverNullableIntShifted(int? i)
		{
			switch (i + 5) {
				case null: {
					return "null";
				}
				case 0: {
					return "zero";
				}
				case 5: {
					return "five";
				}
				case 10: {
					return "ten";
				}
				default: {
					return "large";
				}
			}
		}

		public static string SwitchOverNullableIntNoNullCase(int? i)
		{
			switch (i) {
				case 0: {
					return "zero";
				}
				case 5: {
					return "five";
				}
				case 10: {
					return "ten";
				}
				default: {
					return "other";
				}
			}
		}

		public static string SwitchOverNullableIntNoNullCaseShifted(int? i)
		{
			switch (i + 5) {
				case 0: {
					return "zero";
				}
				case 5: {
					return "five";
				}
				case 10: {
					return "ten";
				}
				default: {
					return "other";
				}
			}
		}

		public static void SwitchOverInt(int i)
		{
			switch (i) {
				case 0: {
						Console.WriteLine("zero");
						break;
					}
				case 5: {
						Console.WriteLine("five");
						break;
					}
				case 10: {
						Console.WriteLine("ten");
						break;
					}
				case 15: {
						Console.WriteLine("fifteen");
						break;
					}
				case 20: {
						Console.WriteLine("twenty");
						break;
					}
				case 25: {
						Console.WriteLine("twenty-five");
						break;
					}
				case 30: {
						Console.WriteLine("thirty");
						break;
					}
			}
		}

		public static string ShortSwitchOverString(string text)
		{
			Console.WriteLine("ShortSwitchOverString: " + text);
			switch (text) {
				case "First case": {
					return "Text1";
				}
				case "Second case": {
					return "Text2";
				}
				case "Third case": {
					return "Text3";
				}
				default: {
					return "Default";
				}
			}
		}

		public static string SwitchOverString1(string text)
		{
			Console.WriteLine("SwitchOverString1: " + text);
			switch (text) {
				case "First case": {
					return "Text1";
				}
				case "Second case":
				case "2nd case": {
					return "Text2";
				}
				case "Third case": {
					return "Text3";
				}
				case "Fourth case": {
					return "Text4";
				}
				case "Fifth case": {
					return "Text5";
				}
				case "Sixth case": {
					return "Text6";
				}
				case null: {
					return null;
				}
				default: {
					return "Default";
				}
			}
		}

		public static string SwitchOverString2()
		{
			Console.WriteLine("SwitchOverString2:");
			string userName = Environment.UserName;
			switch (userName) {
				case "First case": {
					return "Text1";
				}
				case "Second case": {
					return "Text2";
				}
				case "Third case": {
					return "Text3";
				}
				case "Fourth case": {
					return "Text4";
				}
				case "Fifth case": {
					return "Text5";
				}
				case "Sixth case": {
					return "Text6";
				}
				case "Seventh case": {
					return "Text7";
				}
				case "Eighth case": {
					return "Text8";
				}
				case "Ninth case": {
					return "Text9";
				}
				case "Tenth case": {
					return "Text10";
				}
				case "Eleventh case": {
					return "Text11";
				}
				default: {
					return "Default";
				}
			}
		}

		public static string SwitchOverBool(bool b)
		{
			Console.WriteLine("SwitchOverBool: " + b.ToString());
			switch (b) {
				case true: {
					return bool.TrueString;
				}
				case false: {
					return bool.FalseString;
				}
				default: {
					return null;
				}
			}
		}

		public static void SwitchInLoop(int i)
		{
			Console.WriteLine("SwitchInLoop: " + i);
			while (true) {
				switch (i) {
					case 1: {
						Console.WriteLine("one");
						break;
					}
					case 2: {
						Console.WriteLine("two");
						break;
					}
					case 3: {
						Console.WriteLine("three");
						continue;
					}
					case 4: {
						Console.WriteLine("four");
						return;
					}
					default: {
						Console.WriteLine("default");
						Console.WriteLine("more code");
						return;
					}
				}
				i++;
			}
		}

		public static void SwitchWithGoto(int i)
		{
			Console.WriteLine("SwitchWithGoto: " + i);
			switch (i) {
				case 1: {
					Console.WriteLine("one");
					goto default;
				}
				case 2: {
					Console.WriteLine("two");
					goto case 3;
				}
				case 3: {
					Console.WriteLine("three");
					break;
				}
				case 4: {
					Console.WriteLine("four");
					return;
				}
				default: {
					Console.WriteLine("default");
					break;
				}
			}
		}

		private static SetProperty[] GetProperties()
		{
			return new SetProperty[0];
		}

		public static void SwitchOnStringInForLoop()
		{
			List<SetProperty> list = new List<SetProperty>();
			List<SetProperty> list2 = new List<SetProperty>();
			SetProperty[] properties = Switch.GetProperties();
			for (int i = 0; i < properties.Length; i++) {
				SetProperty setProperty = properties[i];
				string name = setProperty.Property.Name;
				switch (name) {
					case "Name1": {
							setProperty.Set = 1;
							list.Add(setProperty);
							break;
						}
					case "Name2": {
							setProperty.Set = 2;
							list.Add(setProperty);
							break;
						}
					case "Name3": {
							setProperty.Set = 3;
							list.Add(setProperty);
							break;
						}
					case "Name4": {
							setProperty.Set = 4;
							list.Add(setProperty);
							break;
						}
					case "Name5":
					case "Name6": {
							list.Add(setProperty);
							break;
						}
					default: {
							list2.Add(setProperty);
							break;
						}
				}
			}
		}
	}
}